/* Gnome-Streamer * Copyright (C) <1999> Erik Walthinsen * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #include #include #include "gstavimux.h" /* elementfactory information */ static GstElementDetails gst_avimux_details = { ".avi mux", "Mux/Video", "Encodes audio and video into an avi stream", VERSION, "Wim Taymans ", "(C) 2000", }; /* AviMux signals and args */ enum { /* FILL ME */ LAST_SIGNAL }; enum { ARG_0, /* FILL ME */ }; GST_PADTEMPLATE_FACTORY (src_factory, "src", GST_PAD_SRC, GST_PAD_ALWAYS, GST_CAPS_NEW ( "sink_video", "video/avi", NULL ) ) GST_PADTEMPLATE_FACTORY (video_sink_factory, "video_%02d", GST_PAD_SINK, GST_PAD_REQUEST, GST_CAPS_NEW ( "sink_video", "video/avi", "format", GST_PROPS_STRING ("strf_vids") ) ) GST_PADTEMPLATE_FACTORY (audio_sink_factory, "audio_%02d", GST_PAD_SINK, GST_PAD_REQUEST, GST_CAPS_NEW ( "sink_audio", "video/avi", "format", GST_PROPS_STRING ("strf_auds") ) ) static void gst_avimux_class_init (GstAviMuxClass *klass); static void gst_avimux_init (GstAviMux *avimux); static void gst_avimux_chain (GstPad *pad, GstBuffer *buf); static GstPad* gst_avimux_request_new_pad (GstElement *element, GstPadTemplate *templ, const gchar *name); static void gst_avimux_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec); static void gst_avimux_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec); static GstElementClass *parent_class = NULL; //static guint gst_avimux_signals[LAST_SIGNAL] = { 0 }; GType gst_avimux_get_type (void) { static GType avimux_type = 0; if (!avimux_type) { static const GTypeInfo avimux_info = { sizeof(GstAviMuxClass), NULL, NULL, (GClassInitFunc)gst_avimux_class_init, NULL, NULL, sizeof(GstAviMux), 0, (GInstanceInitFunc)gst_avimux_init, }; avimux_type = g_type_register_static(GST_TYPE_ELEMENT, "GstAviMux", &avimux_info, 0); } return avimux_type; } static void gst_avimux_class_init (GstAviMuxClass *klass) { GObjectClass *gobject_class; GstElementClass *gstelement_class; gobject_class = (GObjectClass*)klass; gstelement_class = (GstElementClass*)klass; parent_class = g_type_class_ref (GST_TYPE_ELEMENT); gobject_class->set_property = gst_avimux_set_property; gobject_class->get_property = gst_avimux_get_property; gstelement_class->request_new_pad = gst_avimux_request_new_pad; } static void gst_avimux_init (GstAviMux *avimux) { avimux->srcpad = gst_pad_new_from_template ( GST_PADTEMPLATE_GET (src_factory), "src"); gst_element_add_pad (GST_ELEMENT (avimux), avimux->srcpad); avimux->state = GST_AVIMUX_INITIAL; avimux->riff = NULL; avimux->num_audio_pads = 0; avimux->num_video_pads = 0; avimux->next_time = 0; avimux->riff = gst_riff_encoder_new (GST_RIFF_RIFF_AVI); avimux->aviheader = g_malloc0 (sizeof (gst_riff_avih)); } static void gst_avimux_newcaps (GstPad *pad, GstCaps *caps) { GstAviMux *avimux; const gchar* format = gst_caps_get_string (caps, "format"); gint padnum = GPOINTER_TO_INT (gst_pad_get_element_private (pad)); avimux = GST_AVIMUX (gst_pad_get_parent (pad)); GST_DEBUG (0, "avimux: newcaps triggered on %s (%d), %s\n", gst_pad_get_name (pad), padnum, format); if (!strncmp (format, "strf_vids", 9)) { gst_riff_strf_vids *strf_vids = g_malloc(sizeof(gst_riff_strf_vids)); strf_vids->size = sizeof(gst_riff_strf_vids); strf_vids->width = gst_caps_get_int (caps, "width"); strf_vids->height = gst_caps_get_int (caps, "height");; strf_vids->planes = gst_caps_get_int (caps, "planes");; strf_vids->bit_cnt = gst_caps_get_int (caps, "bit_cnt");; strf_vids->compression = gst_caps_get_fourcc_int (caps, "compression");; strf_vids->image_size = gst_caps_get_int (caps, "image_size");; strf_vids->xpels_meter = gst_caps_get_int (caps, "xpels_meter");; strf_vids->ypels_meter = gst_caps_get_int (caps, "ypels_meter");; strf_vids->num_colors = gst_caps_get_int (caps, "num_colors");; strf_vids->imp_colors = gst_caps_get_int (caps, "imp_colors");; avimux->video_header[padnum] = strf_vids; } else if (!strncmp (format, "strf_auds", 9)) { } } static GstPad* gst_avimux_request_new_pad (GstElement *element, GstPadTemplate *templ, const gchar *req_name) { GstAviMux *avimux; gchar *name = NULL; GstPad *newpad; g_return_val_if_fail (templ != NULL, NULL); if (templ->direction != GST_PAD_SINK) { g_warning ("avimux: request pad that is not a SINK pad\n"); return NULL; } g_return_val_if_fail (GST_IS_AVIMUX (element), NULL); avimux = GST_AVIMUX (element); if (templ == GST_PADTEMPLATE_GET (audio_sink_factory)) { name = g_strdup_printf ("audio_%02d", avimux->num_audio_pads); newpad = gst_pad_new_from_template (templ, name); gst_pad_set_element_private (newpad, GINT_TO_POINTER (avimux->num_audio_pads)); avimux->audio_pad[avimux->num_audio_pads] = newpad; avimux->num_audio_pads++; } else if (templ == GST_PADTEMPLATE_GET (video_sink_factory)) { name = g_strdup_printf ("video_%02d", avimux->num_video_pads); newpad = gst_pad_new_from_template (templ, name); gst_pad_set_element_private (newpad, GINT_TO_POINTER (avimux->num_video_pads)); avimux->video_pad[avimux->num_video_pads] = newpad; avimux->num_video_pads++; } else { g_warning ("avimux: this is not our template!\n"); return NULL; } gst_pad_set_chain_function (newpad, gst_avimux_chain); gst_pad_set_newcaps_function (newpad, gst_avimux_newcaps); gst_element_add_pad (element, newpad); return newpad; } static void gst_avimux_make_header (GstAviMux *avimux) { gint i; gst_riff_strh strh; avimux->aviheader->us_frame = 40000; avimux->aviheader->streams = avimux->num_video_pads + avimux->num_audio_pads; avimux->aviheader->width = -1; avimux->aviheader->height = -1; gst_riff_encoder_avih(avimux->riff, avimux->aviheader, sizeof(gst_riff_avih)); memset(&strh, 0, sizeof(gst_riff_strh)); strh.scale = 40000; gst_riff_encoder_strh(avimux->riff, GST_RIFF_FCC_vids, &strh, sizeof(gst_riff_strh)); for (i=0; inum_video_pads; i++) { gst_riff_encoder_strf(avimux->riff, avimux->video_header[i], sizeof(gst_riff_strf_vids)); } } static void gst_avimux_chain (GstPad *pad, GstBuffer *buf) { GstAviMux *avimux; guchar *data; gulong size; const gchar *padname; gint channel; GstBuffer *newbuf; g_return_if_fail (pad != NULL); g_return_if_fail (GST_IS_PAD (pad)); g_return_if_fail (buf != NULL); g_return_if_fail (GST_BUFFER_DATA (buf) != NULL); avimux = GST_AVIMUX (gst_pad_get_parent (pad)); data = (guchar *)GST_BUFFER_DATA(buf); size = GST_BUFFER_SIZE(buf); switch(avimux->state) { case GST_AVIMUX_INITIAL: GST_DEBUG (0,"gst_avimux_chain: writing header\n"); gst_avimux_make_header(avimux); newbuf = gst_riff_encoder_get_and_reset_buffer(avimux->riff); gst_pad_push(avimux->srcpad, newbuf); avimux->state = GST_AVIMUX_MOVI; case GST_AVIMUX_MOVI: padname = gst_pad_get_name (pad); channel = GPOINTER_TO_INT (gst_pad_get_element_private (pad)); if (strncmp(padname, "audio_", 6) == 0) { GST_DEBUG (0,"gst_avimux_chain: got audio buffer in from channel %02d %lu\n", channel, size); gst_riff_encoder_chunk(avimux->riff, GST_RIFF_01wb, NULL, size); newbuf = gst_riff_encoder_get_and_reset_buffer(avimux->riff); gst_pad_push(avimux->srcpad, newbuf); } else if (strncmp(padname, "video_", 6) == 0) { GST_DEBUG (0,"gst_avimux_chain: got video buffer in from channel %02d %lu\n", channel, size); gst_riff_encoder_chunk(avimux->riff, GST_RIFF_00db, NULL, size); newbuf = gst_riff_encoder_get_and_reset_buffer(avimux->riff); GST_DEBUG (0,"gst_avimux_chain: encoded %u\n", GST_BUFFER_SIZE(newbuf)); gst_pad_push(avimux->srcpad, newbuf); } GST_BUFFER_SIZE(buf) = (GST_BUFFER_SIZE(buf)+1)&~1; gst_pad_push(avimux->srcpad, buf); break; default: break; } //gst_buffer_unref(buf); } static void gst_avimux_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) { GstAviMux *src; /* it's not null if we got it, but it might not be ours */ g_return_if_fail(GST_IS_AVIMUX(object)); src = GST_AVIMUX(object); switch(prop_id) { default: break; } } static void gst_avimux_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { GstAviMux *src; /* it's not null if we got it, but it might not be ours */ g_return_if_fail(GST_IS_AVIMUX(object)); src = GST_AVIMUX(object); switch(prop_id) { default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static gboolean plugin_init (GModule *module, GstPlugin *plugin) { GstElementFactory *factory; /* this filter needs the riff parser */ if (!gst_library_load ("gstriff")) { gst_info ("avimux: could not load support library: 'gstriff'\n"); return FALSE; } /* create an elementfactory for the avimux element */ factory = gst_elementfactory_new ("avimux", GST_TYPE_AVIMUX, &gst_avimux_details); g_return_val_if_fail (factory != NULL, FALSE); gst_elementfactory_add_padtemplate (factory, GST_PADTEMPLATE_GET (src_factory)); gst_elementfactory_add_padtemplate (factory, GST_PADTEMPLATE_GET (audio_sink_factory)); gst_elementfactory_add_padtemplate (factory, GST_PADTEMPLATE_GET (video_sink_factory)); gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory)); return TRUE; } GstPluginDesc plugin_desc = { GST_VERSION_MAJOR, GST_VERSION_MINOR, "avimux", plugin_init };